23 Aug 2011

23 August: Loff in Van Mijenfjorden

Loff has after his arrivel in Van Mijenfjorden been using several sites around the fjord, primarily along the northern shorelines of the fjord, in contrast to Niels who mainly used the southern parts of the fjord earlier in August. The map shows locations visited over the past week. Map reproduced with permission from Norwegian Polar Institute using TopoSvalbard

23 August: Niels still at Kap Lee

Since his arrival on Edgeøya on 9 August Niels has remained in the vicinity of Kap Lee for two weeks. This map show locations collected over the week from 17 through 22 August. Apart from a few visits to Thomas Smithøyane he generally spends most of his time in the slightly higher parts of the area. Map reproduced with permission from Norwegian Polar Institute using TopoSvalbard

22 August: Ebbe moving south

Ebbes transmitter likewise have started collecting GPS locations after a couple of weeks where we only got dopplers. He spent the period from 16 August until yesterday in the area between Murchisonfjorden and the Vestfonna glacier.The four lower locations give his movements in the morning of 22 August where he gradually moved southeast and then west, with the last location being from Wahlbergøya. Map reproduced with permission from Norwegian Polar Institute using TopoSvalbard

22 August: Fridtjof and Steve both on Reinsdyrflya

Good news from the 19 and 22 August down-loads of data. All five birds with transmitters on Svalbard have improved battery voltage, and all have collected GPS positions over the past few days. For Fridtjof these are the first locations based on GPS rather than the less accurate doppler technology from August. Fridtjof is still on Reinsdyrflya – and Steve has gradually moved north from his moultsite in southernmost Woodfjorden via Bockfjorden and the east coast of Woodfjorden to Reinsdyrflya, where he has been the last two days. Map reproduced with permission from Norwegian Polar Institute using TopoSvalbard

16 Aug 2011

16 August: Ebbe also on the wings

Ebbes transmitter was silent as a grave 2-12 August. 13 August we recieved a single doppler location in the  vicinity of its moult site at Lady Franklinfjorden. Since then he moved south and today 16 August he was located in an area between the Vestfonna glacier and Celsiusberget. The map shows a combination of GPS locations from 1 August and doppler locations from 13-16 August. Map reproduced with permission from Norwegian Polar Institute using TopoSvalbard

15-16 August: Loff moves southwest

Loff gradually moves southwest. 15 August he was at Colesbukta 30 km west of Longyearbyen and today 16 August he had moved south to Bellsund. There he was at Kaldbukta in the morning and further west at Van Muydenbukta west of Ingeborgfjellet in the evening. The map shows a combination of GPS locations from 15 August and doppler locations from 16 August. Map reproduced with permission from Norwegian Polar Institute using TopoSvalbard

13 Aug 2011

12 August: Steve remains in Woodfjorden after moult

Steve had obviously finished moult 3 August, because we have a GPS location where he was tracked flying 48 km/hour. He was also quite mobile the day before, so probably already airborne 2 August. In contrast to the other three birds we know have finished moult in Svalbard (Niels, Fridtjof and Loff) and who all flew to other sites after moult, Steve is still in Woodfjorden, thus in the vicinity of his moulting site. The map shows all GPS locations collected post-moult from 2 throgh 12 August. Map reproduced with permission from Norwegian Polar Institute using TopoSvalbard

11 Aug 2011

4-10 August: Fridtjof and Loff both on the move after moult

We are facing problems with battery power in some of the satellite transmitters. All PTTs successfully changed from the low intensity summer protocol to the high intensity migration protocol on 1 August. Ideally this should result in 11 daily GPS locations and data uplink via the satellites every third day. The PTTs of Fridtjof and Loff have however both failed to collect GPS based locations most of the days since 1 August. It is evident from the Doppler locations we can get every third day when the transmitters communicate with the satellites that both birds now have finished moult. Fridtjof was 1 August still found on his moult site at the west coast of Austfjorden, on 4 August he gradually moved up to the northern parts of Wijdefjorden, and on 7 August he was found on the eastern end of Reinsdyrflya in north Spitsbergen (upper map). On 7 August Loff was was still in the vicinity of his moult site at Depotlaguna in Nordaustlandet, but 10 August he had moved down to Michajlovfjellet situated between the three glaciers Hinlopenbreen, Veitebreen and Hønerbreen in northeast Spitsbergen (lower map). Maps reproduced with permission from Norwegian Polar Institute using TopoSvalbard

30 July: Niels first bird flying after moult

Niels was the first bird to finish moult. 30 July he moved northeast from his potential breeding location at Van Keulenfjorden via a couple of nunataks north of Sporen to the eastern end of Van Mijenfjorden near Svea. He then spent some days on the south coast of Van Mijenfjorden - and then looped back to Van Keulenfjorden. In the evening 9 August he moved northeast to Kap Lee on Edgeøya. Map reproduced with permission from Norwegian Polar Institute using TopoSvalbard

Mid-summer status

The brent geese each year leave the spring-staging areas in Denmark during the last week of May and return to the autumn staging areas in England and Denmark during the first three weeks of September (median 10 September). Third week of July is thus ‘halfway’ in the summer area, and also the time when all geese are expected to have begun moult by shedding their flight feathers. The status for our six remaining feathered friends is summarized above with two maps showing their moulting location during 18-24 July and a little table below summarizing their status and distances moved so far (i.e. from departure untill 18 July). All but one apparently failed to breed.
We have lost contact to two geese. Jan Ove lost his transmitter over Hemsedal (PTT collected on the ground in Hemsedal without any sign of a carcass, as reported by our local finder Endre Ulsaker). Magnar might also have lost his transmitter when crossing the north Atlantic on 19 June, or he succumbed when he flew into head-winds and quite miserable stormy weather!